High-energy neutrino-induced cascade from the direction of the flaring radio blazar TXS 0506 + 056 observed by Baikal-GVD in 2021
Allakhverdyan V.A. Avrorin A.D. Avrorin A.V. Aynutdinov V.M. Bardačová Z. Belolaptikov I.A. Bondarev E.A. Borina I.V. Budnev N.M. Chadymov V.A. Chepurnov A.S. Dik V.Y. Domogatsky G.V. Doroshenko A.A. Dvornický R. Dyachok A.N. Dzhilkibaev Zh.A.M. Eckerová E. Elzhov T.V. Fajt L. Fomin V.N. Gafarov A.R. Golubkov K.V. Gorshkov N.S. Gress T.I. Kebkal K.G. Kharuk I. Khramov E.V. Kolbin M.M. Koligaev S.O. Konischev K.V. Korobchenko A.V. Koshechkin A.P. Kozhin V.A. Kruglov M.V. Kulepov V.F. Lemeshev Y.E. Milenin M.B. Mirgazov R.R. Naumov D.V. Nikolaev A.S. Petukhov D.P. Pliskovsky E.N. Rozanov M.I. Ryabov E.V. Safronov G.B. Seitova D. Shaybonov B.A. Shelepov M.D. Shilkin S.D. Shirokov E.V. Šimkovic F. Sirenko A.E. Skurikhin A.V. Solovjev A.G. Sorokovikov M.N. Štekl I. Stromakov A.P. Suvorova O.V. Tabolenko V.A. Ulzutuev B.B. Yablokova Y.V. Zaborov D.N. Zavyalov S.I. Zvezdov D.Y. Erkenov A.K. Kosogorov N.A. Kovalev Yu.A. Kovalev Y.Y. Plavin A.V. Popkov A.V. Pushkarev A.B. Semikoz D.V. Sotnikova Y.V. Troitsky S.V.
1 January 2024Oxford University Press
Monthly Notices of the Royal Astronomical Society
2024#527Issue 38784 - 8792 pp.
The existence of high-energy astrophysical neutrinos has been unambiguously demonstrated, but their sources remain elusive. IceCube reported an association of a 290-TeV neutrino with a gamma-ray flare of TXS 0506 + 056, an active galactic nucleus with a compact radio jet pointing to us. Later, radio-bright blazars were shown to be associated with IceCube neutrino events with high statistical significance. These associations remained unconfirmed with the data of independent experiments. Here, we report on the detection of a rare neutrino event with the estimated energy of 224 ± 75 TeV from the direction of TXS 0506 + 056 by the new Baikal Gigaton Volume Detector (Baikal-GVD) in April 2021. This event is the highest energy cascade detected so far by the Baikal-GVD neutrino telescope from a direction below horizon. The result supports previous suggestions that radio blazars in general, and TXS 0506 + 056 in particular, are the sources of high-energy neutrinos, and opens up the cascade channel for the neutrino astronomy.
BL Lacertae objects: individual: TXS 0506 + 056 , galaxies: active , neutrinos , radio continuum: galaxies
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Joint Institute for Nuclear Research, Dubna, 141980, Russian Federation
Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7a, Moscow, 117312, Russian Federation
Comenius University, Bratislava, 81499, Slovakia
Czech Technical University in Prague, Institute of Experimental and Applied Physics, Prague, 11000, Czech Republic
Irkutsk State University, Irkutsk, 664003, Russian Federation
Skobeltsyn Research Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, 119991, Russian Federation
Institute of Nuclear Physics ME RK, Almaty, 050032, Kazakhstan
LATENA, St Petersburg, 199106, Russian Federation
INFRAD, Dubna, 141981, Russian Federation
Nizhny Novgorod State Technical University, Nizhny Novgorod, 603950, Russian Federation
Sankt Petersburg State Marine Technical University, Sankt Petersburg, 190008, Russian Federation
Special Astrophysical Observatory of RAS, Nizhny Arkhyz, 369167, Russian Federation
Astro Space Center of Lebedev Physical Institute, Profsoyuznaya 84/32, Moscow, 117997, Russian Federation
Moscow Institute of Physics and Technology, Institutsky per. 9, Dolgoprudny, 141700, Russian Federation
Cahill Center for Astronomy and Astrophysics, MC 249-17 California Institute of Technology, Pasadena, 91125, CA, United States
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, D-53121, Germany
Black Hole Initiative, Harvard University, 20 Garden Street, Cambridge, 02138, MA, United States
Crimean Astrophysical Observatory, Nauchny, 298409, Russian Federation
APC, Université Paris Diderot, CNRS, IN2P3, CEA/IRFU, Sorbonne Paris Cité, Paris, 119 75205, France
Physics Department, M.V. Lomonosov Moscow State University, 1-2 Lenin-skie Gory, Moscow, 119991, Russian Federation
Joint Institute for Nuclear Research
Institute for Nuclear Research of the Russian Academy of Sciences
Comenius University
Czech Technical University in Prague
Irkutsk State University
Skobeltsyn Research Institute of Nuclear Physics
Institute of Nuclear Physics ME RK
LATENA
INFRAD
Nizhny Novgorod State Technical University
Sankt Petersburg State Marine Technical University
Special Astrophysical Observatory of RAS
Astro Space Center of Lebedev Physical Institute
Moscow Institute of Physics and Technology
Cahill Center for Astronomy and Astrophysics
Max-Planck-Institut für Radioastronomie
Black Hole Initiative
Crimean Astrophysical Observatory
APC
Physics Department
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